i want to change my t-mobile phone but how much will it cost, how long till it take effect, number to call (link to number will be helpful), and when i call what type of questions will they ask me before i can change my number
Well it depends on what type of phone you want. Here's a number you can call for t-mobile assistance 1-800-937-8997. They'll ask for your tmobile account name and your cell phone number. Maybe your SSN (social security number)
